* dbus/dbus-internals.c (_dbus_real_assert): print the function
	name the assertion failed in

	* dbus/dbus-internals.h (_dbus_return_if_fail)
	(_dbus_return_val_if_fail): assert that the name of the function
	containing the check doesn't start with '_', since we only want to
	use checks on public functions

	* dbus/dbus-connection.c (_dbus_connection_ref_unlocked): change
	checks to assertions

	* dbus/dbus-marshal-header.c (_dbus_header_set_field_basic):
	change checks to asserts for private function

	* dbus/dbus-message.c (_dbus_message_set_serial): checks
	to asserts for private function

	* dbus/dbus-marshal-recursive.c (skip_one_complete_type): remove
	broken assertion that was breaking make check
	(_dbus_type_reader_array_is_empty): remove this rather than fix
	it, was only used in assertions